EXHIBIT 21

SUBSIDIARIES OF T. ROWE PRICE GROUP, INC.
DECEMBER 31, 2010

Subsidiary companies and place of incorporation	Ownership
T. Rowe Price Advisory Services, Inc. (Maryland)		100	%
T. Rowe Price Associates, Inc. (Maryland)		100	%
T. Rowe Price (Canada), Inc. (Maryland)		100	%
T. Rowe Price Investment Services, Inc. (Maryland)		100	%
T. Rowe Price Retirement Plan Services, Inc. (Maryland)		100	%
T. Rowe Price Savings Bank (Maryland)		100	%
T. Rowe Price Services, Inc. (Maryland)		100	%
TRP Suburban Second, Inc. (Maryland)		100	%
T. Rowe Price International Ltd (United Kingdom)		100	%
T. Rowe Price Hong Kong Limited (Hong Kong)		100	%
T. Rowe Price Singapore Private Ltd. (Singapore)		100	%

Other subsidiaries have been omitted because, when considered in the aggregate, they do not constitute a significant subsidiary.

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